Sju heuristiker för utvärdering av webb-API
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The amount of web APIs that are open to the public is increasing fast. Both the free web APIs as well as the ones that cost money to access. Both bigger and smaller organizations, professional and non-professional developers use these web APIs to add value to their systems or use it to create new applications. This is an area study where alot of research has been done in the last few years. In spite of this there are still no user-centered evaluation methods for web APIs. Previous research calls for an adjustment of human computer interaction-methods (HCI) for the purpose of evaluating web APIs. The purpose of this essay is to adjust heuristic evaluation wich is a method originating from HCI. The adjustment will result in a presentation of evaluation criteria, suitable for evaluating web APIs. In our case study we perform an experiment where we collect usability problems that we come across. The experiment includes us programming tests towards a web API, called MobileResponse, that is still under development. After that we will use a questionaire to investigate what problems is experienced by other system developers when interacting with MobileResponse. Theese two data-gathering activities will, together with the theorethical framework we've created, act as a base for the analysis. The analysis will lead us to identify underlying causes of the problems found. After that we formulate heuristics that should encapsulate these types of problems. The conclusion is a recommendation in shape of a list of heuristics that can be used for heuristic evaluation of web APIs.